Senior Device Engineer

STMicroelectronics Asia Pacific Pte Ltd; Hong Kong; On-site; HKD 300,000 - 520,000; Full time

Job summary

STMicroelectronics Asia Pacific Pte Ltd is seeking a motivated Process/ Yield Engineer to monitor and improve EWS and PT yield, perform root-cause analysis, and support tool qualification and production ramp-up. You will collaborate with Process, Module and Division teams to optimize sort test programs, implement containment, corrective and preventive actions, and drive improvements in inline and CPK.

A degree in Engineering and at least two years of experience in semiconductor manufacturing,

Qualifications

• Degree in Engineering or related discipline.
• Minimum 2 years of experience in semiconductor manufacturing, yield improvement, process engineering, or a related field.
• Good understanding of semiconductor manufacturing.
• Familiarity with bench analyzer operation.
• Basic knowledge of statistics.
• Strong team collaboration skills.
• Proficiency in Microsoft Office tools.
• Experience with Ace-Xp, JMP, or Spotfire is an advantage.
• Strong command of English, both written and spoken.

Responsibilities

• Monitor and improve Electrical Wafer Sort (EWS) test yield loss; analyze root causes.
• Reduce scrap through containment, corrective, and preventive actions.
• Manage lots on hold and ensure daily disposition follow-up.
• Support MRB activities and timely NCL disposition.
• Assist engineers with electrical data analysis for tool qualification and ramp-up.
• Drive process change qualification when marginality is identified.
• Collaborate to optimize sort test programs and limits; improve CPK where applicable.
• Coordinate with Process and Division teams for cross-functional improvements.
• Assist in tech transfers and qualification activities.

Skills

Semiconductor manufacturing knowledge

Statistics

Team collaboration

English language

MS Office

Education

Bachelor's degree in Engineering or related discipline

Tools

Ace-Xp

JMP

Spotfire

Job description

Key Reposibilities

• Monitor and improve Electrical Wafer Sort (EWS) test yield loss for the assigned technology.
• Analyze and reduce Parametric Testing (PT) and EWS scrap through root cause identification and implementation of containment, corrective, and preventive actions.
• Manage lots on hold, including inline, T84, and EWS lots, and ensure daily disposition follow-up.
• Support MQA and Division teams in MRB activities and timely NCL disposition.
• Assist Process and Module Engineers with electrical data analysis for new tool qualification and production ramp-up.
• Drive process change qualification when product or process marginality is identified.
• Work with Product Engineers to optimize sort test programs, specification limits, and statistical bin limits where applicable.
• Collaborate with Process Engineers and Division teams to improve inline and PT CPK.
• Support sending plant, Division, RAT, Process Engineers, and Production Control teams in techno and new product transfer qualifications.
• Apply failure analysis knowledge and perform bench measurements to support root cause analysis.
• Support defectivity reduction initiatives and Customer Quality Assurance activities for customer incident analysis.
• Lead ad hoc improvement projects related to yield enhancement, scrap reduction, defectivity reduction, process robustness, process simplification, lot hold improvement, and cost reduction.
• Liaise with professionals from other functions and ST sites to support team requirements and collaboration.

Requirements

• Degree in Engineering or a related discipline.
• Minimum 2 years of experience in semiconductor manufacturing, yield improvement, process engineering, or a related field.
• Good understanding of semiconductor manufacturing.
• Familiarity with bench analyzer operation.
• Basic knowledge of statistics.
• Strong team collaboration skills.
• Proficiency in Microsoft Office tools.
• Experience with Ace-Xp, JMP, or Spotfire is an advantage.
• Strong command of English, both written and spoken.